Pretty good article.
Amongst other things, I am a mathematician, cryptographer, and physicist.
While I get the math, still can’t really get my head around the Navier-Stokes equation.
The big question used to be, “Do the solutions of the Navier-Stokes equation include turbulence?”
Surely this must have been resolved by now! But I haven’t heard.
... heh. The Wikipedia article on Navier-Stokes addresses the issue, but indicates that it has not been entirely resolved, as a “raw” numerical approach does not make the grade. Phathinatin!